A backreaction model with multiple inhomogeneous domains, when constrained by PantheonPlus+SH0ES data, produces τ_reion = 0.0581^{+0.0105}_{-0.0096} that matches observations better than ΛCDM.
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Joint analysis of DESI DR2, Pantheon+, and cosmic chronometers yields a mild statistical preference for time-varying dark energy over LambdaCDM, though constraints on the evolution remain moderate.
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Optical depth to reionization in a Universe with multiple inhomogeneous domains
A backreaction model with multiple inhomogeneous domains, when constrained by PantheonPlus+SH0ES data, produces τ_reion = 0.0581^{+0.0105}_{-0.0096} that matches observations better than ΛCDM.
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Probing the Evolution of Dark Energy: A Joint Analysis of DESI DR2, Pantheon+, and Cosmic Chronometers
Joint analysis of DESI DR2, Pantheon+, and cosmic chronometers yields a mild statistical preference for time-varying dark energy over LambdaCDM, though constraints on the evolution remain moderate.